Mark 6:7-12

And He called the twelve [disciples] and began to send them out [as His special messengers] two by two, and gave them authority and power over the unclean spirits. He told them to take nothing for the journey except a mere walking stick—no bread, no [traveler’s] bag, no money in their belts— but to wear sandals; and [He told them] not to wear two tunics. And He told them, “Wherever you go into a house, stay there until you leave that town. Any place that does not welcome you or listen to you, when you leave there, shake the dust off the soles of your feet as a testimony against them [breaking all ties with them because they rejected My message].” [Matt 10:14; Acts 13:51] So they went out and preached that men should repent [that is, think differently, recognize sin, turn away from it, and live changed lives].